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  1. #1
    Senior Member TedC's Avatar
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    Three Speed with Rear Derailleur

    Hey, a quick question I was wondering about.

    I have an old road bike which I ride as a single speed right now, but have been adding racks for commuting and was wondering if I could make it to a three speed..but not the internal hub way.

    Say I were to get a rear derailleur and this freewheel..could it work? Giving me just a litttle bit more gearing options? This would be the perfect commuting option for me I feel...

    Also as far as shifters go... it has downtube shifters..could I work those in, or would it be best to just get a bar mounted shifter?


  2. #2
    Senior Member TedC's Avatar
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    and the bike, just for fun.

  3. #3
    Old fart JohnDThompson's Avatar
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    Why not this instead of a freewheel/derailleur?


  4. #4
    George Krpan
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    You might as well use the downtube shifters. Hopefully they are friction or they are indexed with a friction mode. If the latter, you might get lucky and the indexing works with the 3 speed freewheel.

    You would have to adjust the derailleur stops for the 3 speed freewheel. There is a possibility that they can't be adjusted that narrow. A 5 speed freewheel is more likely to work and it is probably cheaper than that esoteric 3 speed. The 3 speed is cool though.

    Neat looking bike.
    Last edited by GeoKrpan; 05-21-12 at 09:16 PM.

  5. #5
    Asi
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    Just go for it. Friction downtube shifters are OK with any rear mech. Just make sure your frame has the proper hanger. If it does not have a hanger then you must find axle mount rear mech. And don't forget to change the chain with a longer one. (do not add links to a used chain, get a new one - or old one that have enough links from the start)

  6. #6
    Senior Member TedC's Avatar
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    Thanks all.

    I really like the idea of a three speed, and I dont want to go internal as this is the beater/grocery getter/ sees every condition/stays outside/ I dont want to put a lot if money into it bike.

    Is there any reason why this 5 speed from Shimano wouldn't work?

    SHIMANO SIS RD-TY15 Bike Rear Derailleur 5Spd 5 Speed Medium Cage

    Paired with that 3 speed cassette and my down tube shifters (which are indexed for a 5 or 6 speed....that may be the problem?- I checked this morning)?

  7. #7
    coprolite fietsbob's Avatar
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    I'D find the freewheel remover that fits on that , first..
    or you have to destroy it to take it off, again..

    if you cannot find it, don't screw it on..

    +1 on a AW3 .. spare parts are there.. all of them.
    Last edited by fietsbob; 05-22-12 at 10:36 AM.

  8. #8
    Old fart JohnDThompson's Avatar
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    Quote Originally Posted by TedC View Post
    I really like the idea of a three speed, and I dont want to go internal as this is the beater/grocery getter/ sees every condition/stays outside/ I dont want to put a lot if money into it bike.
    Exposure to the elements is the strongest reason *FOR* getting an internally geared hub! The mechanism is sheltered inside, away from the elements. The Sturmey-Archer 3-speed hub on my commuter bike is over 50 years old and still going strong. Used "AW" hubs are strong, dependable, abundant, and inexpensive.

  9. #9
    George Krpan
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    That Shimano derailleur should be fine. Some of those are designed for a bike without a derailleur hanger and horizontal dropouts, you don't want one of those.

    Can you give us a link to that 3 speed freewheel?

  10. #10
    George Krpan
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    Quote Originally Posted by fietsbob View Post
    I'D find the freewheel remover that fits on that , first..
    or you have to destroy it to take it off, again..

    if you cannot find it, don't screw it on..

    +1 on a AW3 .. spare parts are there.. all of them.
    That's a good point. I see two notches but they don't look very deep.

  11. #11
    Senior Member TedC's Avatar
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    Eh good point on that - I didnt look super close at it.

    So a wheel built up with the SA hub is about $200 - too rich for my blood.

  12. #12
    coprolite fietsbob's Avatar
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    As said seek out used AW3's, or just stick with the single speed Freewheel.
    [that uses a F/W remover that is commonly available.. ]

    seen some single speed F/W with no removal notch ,OEM picked for Trikes.
    you put those on a piece that keyway fits on the axle, presumably then you buy
    that too, if you wanted something different, tooth count wise..

  13. #13
    Senior Member TedC's Avatar
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    This was all just a thought - not ready to put the money in. But I will keep an eye out now for used AW3

  14. #14
    Senior Member Monster Pete's Avatar
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    I built my own 3-speed wheel using an AW hub from ebay, a salvaged rim (from another wheel) and new spokes. In all I think it cost me less than 30 to put together. It really is a better option than a 3-speed derailleur.
    I've got a bike, you can ride if you like it's got a basket, a bell that rings and things to make it look good- Pink Floyd, 1967

  15. #15
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    Some rear derailleurs don't have enough adjustment in the limit screws to get your range of motion that narrow. I had this problem even using a rear derailleur that was designed for 7 speeds with a 5 speed freewheel. On the other hand, I also once had a bike with a 9 speed derailleur running a 5 speed freewheel no problem.

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